From: Dario Binacchi <dariobin@libero.it>
To: u-boot@lists.denx.de
Subject: [PATCH v2 09/12] pinctrl: single: add get_pins_count operation
Date: Thu, 28 Jan 2021 23:24:58 +0100 [thread overview]
Message-ID: <20210128222501.31943-10-dariobin@libero.it> (raw)
In-Reply-To: <20210128222501.31943-1-dariobin@libero.it>
It returns the number of selectable pins.
Signed-off-by: Dario Binacchi <dariobin@libero.it>
Reviewed-by: Simon Glass <sjg@chromium.org>
---
Changes in v2:
- Added Simon Glass review tag.
drivers/pinctrl/pinctrl-single.c | 37 ++++++++++++++++++++++++++++++++
1 file changed, 37 insertions(+)
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index 5b3ccc2281..e99eb552f5 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -26,6 +26,16 @@ struct single_pdata {
bool bits_per_mux;
};
+/**
+ * struct single_priv - private data
+ * @bits_per_pin: number of bits per pin
+ * @npins: number of selectable pins
+ */
+struct single_priv {
+ unsigned int bits_per_pin;
+ unsigned int npins;
+};
+
/**
* struct single_fdt_pin_cfg - pin configuration
*
@@ -194,6 +204,30 @@ static int single_set_state(struct udevice *dev,
return len;
}
+static int single_get_pins_count(struct udevice *dev)
+{
+ struct single_priv *priv = dev_get_priv(dev);
+
+ return priv->npins;
+}
+
+static int single_probe(struct udevice *dev)
+{
+ struct single_pdata *pdata = dev_get_plat(dev);
+ struct single_priv *priv = dev_get_priv(dev);
+ u32 size;
+
+ size = pdata->offset + pdata->width / BITS_PER_BYTE;
+ priv->npins = size / (pdata->width / BITS_PER_BYTE);
+ if (pdata->bits_per_mux) {
+ priv->bits_per_pin = fls(pdata->mask);
+ priv->npins *= (pdata->width / priv->bits_per_pin);
+ }
+
+ dev_dbg(dev, "%d pins\n", priv->npins);
+ return 0;
+}
+
static int single_of_to_plat(struct udevice *dev)
{
fdt_addr_t addr;
@@ -244,6 +278,7 @@ static int single_of_to_plat(struct udevice *dev)
}
const struct pinctrl_ops single_pinctrl_ops = {
+ .get_pins_count = single_get_pins_count,
.set_state = single_set_state,
};
@@ -258,5 +293,7 @@ U_BOOT_DRIVER(single_pinctrl) = {
.of_match = single_pinctrl_match,
.ops = &single_pinctrl_ops,
.plat_auto = sizeof(struct single_pdata),
+ .priv_auto = sizeof(struct single_priv),
.of_to_plat = single_of_to_plat,
+ .probe = single_probe,
};
--
2.17.1
next prev parent reply other threads:[~2021-01-28 22:24 UTC|newest]
Thread overview: 23+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-01-28 22:24 [PATCH v2 00/12] Add support for pinmux status command on beaglebone Dario Binacchi
2021-01-28 22:24 ` [PATCH v2 01/12] pinctrl: single: fix format of structure documentation Dario Binacchi
2021-01-28 22:24 ` [PATCH v2 02/12] pinctrl: single: fix the loop counter variable type Dario Binacchi
2021-01-28 22:24 ` [PATCH v2 03/12] pinctrl: single: fix offset management Dario Binacchi
2021-01-29 16:50 ` Pratyush Yadav
2021-01-28 22:24 ` [PATCH v2 04/12] pinctrl: single: fix debug messages formatting Dario Binacchi
2021-01-29 16:53 ` Pratyush Yadav
2021-01-28 22:24 ` [PATCH v2 05/12] pinctrl: single: get register area size by device API Dario Binacchi
2021-01-29 17:47 ` Pratyush Yadav
2021-01-28 22:24 ` [PATCH v2 06/12] pinctrl: single: check "register-width" DT property Dario Binacchi
2021-01-28 22:24 ` [PATCH v2 07/12] pinctrl: single: change function mask default value Dario Binacchi
2021-02-01 20:44 ` Simon Glass
2021-01-28 22:24 ` [PATCH v2 08/12] pinctrl: single: add register access functions Dario Binacchi
2021-02-01 20:44 ` Simon Glass
2021-01-28 22:24 ` Dario Binacchi [this message]
2021-01-28 22:24 ` [PATCH v2 10/12] pinctrl: single: add get_pin_name operation Dario Binacchi
2021-01-28 22:25 ` [PATCH v2 11/12] pinctrl: single: add get_pin_muxing operation Dario Binacchi
2021-02-01 20:44 ` Simon Glass
2021-01-28 22:25 ` [PATCH v2 12/12] test: pinmux: add test for 'pinctrl-single' driver Dario Binacchi
2021-02-04 18:02 ` [PATCH v2 00/12] Add support for pinmux status command on beaglebone Lokesh Vutla
2021-02-05 10:54 ` Dario Binacchi
2021-02-05 14:17 ` Lokesh Vutla
2021-02-05 18:37 ` Tom Rini
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